Grissom High School seniors on Monday made their mark on the annual tradition of first-day-of-school pranks, causing confusion among drivers by covering the school's parking spots with paper and duct tape, principal Tom Drake said.

"They've got to set the tone," Drake joked, referring to the seniors.

Drake said several seniors participated in the prank. The students have detention Friday morning.

The prank wasn't all lighthearted fun, however.

Drake said two large concrete trash receptacles were broken. The receptacles cost $500 each. "That's not the funny part," Drake said. "The paper didn't upset me. I though it was kind of cute."